Railway crossing signal display



FIG. 1 is front view of a railway crossing signal display showing my new design, the human head-like image being shown in broken lines facing forward;

FIG. 2 is a front view thereof, the human head-like image being shown in broken lines facing in a direction between forward and sideways; and,

FIG. 3 is a front view thereof, the human head-like image being shown in broken lines facing sideways.

The undisclosed rear, right side, left side, top and bottom are plain and unornamented.

The broken line showing of the human head-like image is for illustrative purposes only and forms no part of the claimed design. It being understood that the sides have no substantial thickness and the rear is plain unornamented. 

The ornamental design for a railway crossing signal display, as shown and described. 